Script tags do not have type attribute; language attribute is almost always ignored by non IE browsers.

Attributes of majority of tags are not quoted

You include adapters from some non-standard directory; are they included at all?

You have quite complex html markup in acc2-ct but in the first statement of the init() you are trying to clear it all. You don't clear it in fact as Ext.get returns Ext.Element and setting Ext.Element's property innerHTML to '' has no effect.

Result is that you create new Accrodions in the same container over and over. Even if you'd correctly set acc2-ct content to '' this is not going to work. Accordion is complex structure with a lot of event handlers, references, etc. and setting it's container's innerHTML to '' would lead at least to memory leaks.

I'd advice to learn more about html an Ext and then to choose much simpler task, e.g. How to integrate... part of Howto on the Accordion demo page.

I refresh the content of the container and then create a new Accrodion on the same co

I refresh the content of the container and then create a new Accrodion on the same container.
May be I'll change my code , only refresh the content of container ,don't recreate
Accordion Object. I will try again.